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Failure of Geotextile-Reinforced Walls in Centrifuge Model Tests

机译：离心机模型试验中土工织物增强墙体的失效

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This paper presents the results of centrifuge tests performed to investigate the behavior of geotextile-reinforced soil walls beyond stress conditions. The models were built using nonwoven fabrics as reinforcement layers and dry sand as backfill. Digital image analysis techniques were used to determine the displacement of sand markers placed along the reinforcements. The models were loaded until failure by increasing centrifugal acceleration, and the movements of the sand markers were used to determine the strain distributions along the reinforcement layers. The results revealed that stresses redistribute among reinforcement layers as models approach failure. Current design methods for GRS walls were found to be conservative when applied to predict the behavior of the reduced-scale models.'
机译：本文介绍了对探测土工织物增强土壁的行为超越应力条件的离心机试验结果。 该模型采用非织造织物作为加强层和干砂作为回填。 数字图像分析技术用于确定沿增强件放置的砂标记的位移。 通过增加离心加速度，加载模型直至失效，并且使用砂标记的运动来确定沿着加强层的应变分布。 结果表明，随着模型接近故障的强调，钢筋层之间的重新分配。 当应用于预测减速模型的行为时，发现当前的GRS墙壁设计方法是保守的。

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